2-channel electricity consumption meter Shelly PRO 3EM 400A WiFi
Shelly Pro 3EM 400A is a professional, three-phase electricity consumption meter, which can be installed on a DIN rail. The device reports the accumulated energy with an accuracy of 1% and in real time the voltage, current and power for each phase. It stores data for the last 60 days with a resolution of one minute for each phase, allowing for precise analysis. Finally, it offers advanced scenario creation capabilities and extensive monitoring options.

Specifications:
| Manufacturer | Shelly |
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| Model | SPEM-003CEBEU400 |
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| AC power supply voltage | 110 - 240V, 50/60Hz |
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| Power consumption | < 3W |
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| Internal temperature sensor | Yes |
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| Voltage meters (RMS for each phase) | 100 - 260V |
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| Voltmeter accuracy | ±1>#/td### |
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| Ammeters (RMS via CT for each phase and neutral) | 0 - 400A |
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| Compatible current transformer (CT) ratings | CT-400A |
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| Ammeter accuracy | ±1% (5 - 400A), ±2% (0 - 5A) |
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| Power and energy meters | Active and apparent power, active and apparent energy, power factor, fundamental energy and fundamental reactive energy |
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| Channel-to-channel calibration at minimum load | 5000W per channel |
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| No-load limit | 30VA per channel |
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| Saving measurement data | At least 60 days with 1 minute data analysis |
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| Data export | CSV format for stored PQ values, JSON export via RPC |
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| Wi-Fi protocol | 802.11b/g/n |
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| Wi-Fi range | Up to 30m indoors and 50m outdoors |
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| Bluetooth protocol | 4.2 |
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| Bluetooth range | Up to 10m indoors and 30m outdoors |
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| CPU | ESP32-D0WDQ6 |
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| Flash memory | 16MB |
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| Ambient temperature | -20°C to +40°C |
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| Moisture | 30% to 70% RH |
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| Maximum altitude | 2000m |
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| Dimensions | 94 x 19 x 69 ±0.5mm |
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| Weight | 62 ±1g |
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| Place | DIN rail |
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| Housing material | Plastic |
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